GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Saturn 🢒 2008 🢒 SKY 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Data Communication Schematics
Figure 1:

Low Speed LAN
Object Number: 1914233 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
High Speed LAN
Figure 2:

High Speed LAN
Object Number: 1914241 Size: FS
Master Electrical Component List
Data Link Communications Description and Operation
Control Module References
Low Speed LAN